20671490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{599}}^1$

素因数の和:659

約数の個数: 64

約数和(自身を含む): 46656000

約数和(自身を除く): 25984510

約数列:

[1, 2, 5, 7, 10, 14, 17, 29, 34, 35, 58, 70, 85, 119, 145, 170, 203, 238, 290, 406, 493, 595, 599, 986, 1015, 1190, 1198, 2030, 2465, 2995, 3451, 4193, 4930, 5990, 6902, 8386, 10183, 17255, 17371, 20366, 20965, 34510, 34742, 41930, 50915, 71281, 86855, 101830, 121597, 142562, 173710, 243194, 295307, 356405, 590614, 607985, 712810, 1215970, 1476535, 2067149, 2953070, 4134298, 10335745, 20671490]

約数ペア:

[(1, 20671490), (2, 10335745), (5, 4134298), (7, 2953070), (10, 2067149), (14, 1476535), (17, 1215970), (29, 712810), (34, 607985), (35, 590614), (58, 356405), (70, 295307), (85, 243194), (119, 173710), (145, 142562), (170, 121597), (203, 101830), (238, 86855), (290, 71281), (406, 50915), (493, 41930), (595, 34742), (599, 34510), (986, 20965), (1015, 20366), (1190, 17371), (1198, 17255), (2030, 10183), (2465, 8386), (2995, 6902), (3451, 5990), (4193, 4930)]